|
|||||
|
|
Electrochemical characterization of alternate conducting carbazole-bisthiophene units |
|
| Authors: | Mieczys?aw ?apkowski Przemys?aw Data Anna Nowakowska-OleksyJadwiga So?oducho Szczepan Roszak |
| Affiliation: | a Silesian University of Technology, Department of Chemistry, Strzody 9, 44-100 Gliwice, Poland b Centre of Polymer and Carbon Materials of the Polish Academy of Sciences, Sowinskiego 5, 44-100 Gliwice, Poland c Wroclaw University of Technology, Faculty of Chemistry, Department of Medicinal Chemistry and Microbiology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland d Wroclaw University of Technology, Institute of Physical and Theoretical Chemistry, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland |
| Abstract: | An electrochemical and theoretical character of alternate copolymer of carbazole and bithiophene units was investigated. Polymerization is processed as two steps bielectronic oxidation of molecule. With monoelectronic oxidation is connected stable radical cation with spin located mainly on carbazole. The electrochemical properties of polymer are dependent on thickness of film deposited on electrode. In case of the thin layers one it is observed characteristic redox couple of carbazole oxidation to radical cation. Analysis of polymer behavior and results of spectrochemical measurements indicate on mixed type of electroconductivity.Molecular structures, HOMO-LUMO gaps and nature of highest occupied and lowest unoccupied molecular orbitals were also studied in presented work for oligomers ranging from monomer to octamer. The studies applied density functional theory (DFT). |
| Keywords: | Carbazole derivatives Electrochemistry Cyclic voltammetry Radical cation Fluorescence Spectroelectrochemistry Theoretical calculations |
| 本文献已被 ScienceDirect 等数据库收录！ | |